On Mon, 2020-09-14 at 10:39 -0300, luis.roberto@xxxxxxxxxxxxxxx wrote: > In PostgreSQL 13, the way of using effective_io_concurrency has changed. Until v12, > I used 200 for this value (using SSD drives). Using the new formula described in > https://www.postgresql.org/docs/13/release-13.html gives me 1176. > However, in the documentation https://www.postgresql.org/docs/13/runtime-config-resource.html#GUC-EFFECTIVE-IO-CONCURRENCY > it says that the maximum value allowed is 1000. Then use the value 1000... Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com